The new generation of “maker” tools like 3-D printers and milling machines promises to let anyone make virtually anything—from prosthetic limbs to firearms—in the privacy and convenience of his or her own home. But first, those tools have to get to customers’ homes.

Both the Samsung Galaxy S6 and HTC One M9 are going to be unveiled this Sunday, at dueling press events in Barcelona, Spain. The Galaxy S6 is still mostly a mystery, meaning, we haven’t seen the device in the wild at all.

Why pay E*Trade $8 to buy or sell a stock when you can trade for free on RobinHood? After two years of development, $16 million in funding, and 500,000 waitlist signups, RobinHood finally hits the iOS app store today.

Editors’ note: This is the first in our series looking at the DMCA Exemptions period. In August, President Obama signed the Unlocking Consumer Choice and Wireless Competition Act, a law ensuring that companies and consumers have the right to unlock their own cellphones.

With each new version of Android comes a new “Easter egg” animation hidden away in the Settings app. In KitKat it was the dessert tray animation. In the Android L preview it was a reference to the obscure “webdriver torso” YouTube mystery.

Another Apple event has come and gone, and there’s still no MacBook Air with a Retina display. I won’t blame you if you’re frustrated — now that there’s a 5K iMac, the Air is Cupertino’s last screen-packing computer to ship without an extreme-resolution screen.

(CNN) — Here’s a roundup of five medical studies published this week that might give you new insights into your health, mind and body. Remember, correlation is not causation — so if a study finds a connection between two things, it doesn’t mean that one causes the other.